googleVis 0.2.15 [2012-03-04]
----------------------------

Changes

*  Updated documentation following a new version of the Google API
   on 22 February 2012. 
     
*  Moved vignette from folder /inst/doc to /vignettes

NEW FEATURES

*  Quoted from Google
   http://code.google.com/apis/chart/interactive/docs/release_notes.html: 
   - Added gradient color mode to bubble chart.
   - Geo chart:
     o  Region interactivity in marker mode is now disabled by
     	default. How to keep the old behavior? Set the
   	enableRegionInteractivity option to true.

     o  Markers are now opaque by default. How to keep the old
        behaviour? Set the markerOpacity option to 0.5.

     o  Marker size is now between 3 and 12 pixels by default. How to
        keep the old behavior? Set the sizeAxis option to {minSize: 2,
        maxSize: 30}.

     o  A magnifying glass is now opened when the user hovers over
        cluttered markers (excluding IE<=8). How to keep the old
        behaviour? Set the magnifyingGlass option to {enable: false}.

     o  Maps are not stretched by default anymore, but rather kept at
      	the original aspect ratio. How to keep the old behavior? Set the
  	keepAspectRatio option to false.


googleVis 0.2.14 [2012-02-04]
----------------------------

Changes

*  Updated help files to be in line with the Google Visualisation
   API pages
*  Updated vignette with new section on dealing with apostrophes in
   column names and updated example in section "Setting options"
*  Fixed typos in vignette. Thanks to Pat Burns for pointing them
   out
*  Updated links to Google's updated API Terms of Use:
   http://code.google.com/apis/terms/index.html  

NEW FEATURES

 *  New bubble chart function gvisBubbleChart


googleVis 0.2.13 [2011-12-19]
----------------------------

Changes

 *  The list of arguments for gvisGeoChart changed:
    - the argument 'numvar' has been renamed to 'colorvar' to
      reflect the updated Google API. Additionally gvisGeoChart
      gained a new argument 'sizevar'.
 *  Updated googleVis vignette with a section on using googleVis 
    output in presentations  
 *  Renamed demo EventListner to EventListener

NEW FEATURES

 *  Google published a new version of their Visualisation API on 7
    December 2011. Some of the new features have been implemented
    into googleVis already:
    - New stepped area chart function gvisSteppedAreaChart
    - gvisGeoChart has a new marker mode, similar to the mode in
      gvisGeoMap. See example(gvisGeoChart) for the new
      functionalities.

googleVis 0.2.12 [2011-12-07]
----------------------------

Bug Fixes

 *  gvisMotionChart didn't display data with special characters,
    e.g. spaces, &, %, in column names correctly. 
    Thanks to Alexander Holcroft for reporting this issue.

googleVis 0.2.11 [2011-11-16]
----------------------------

Changes

*  Updated vignette and documentation with instructions on changing
   the Flash security settings to display Flash charts locally. 
   Thanks to Tony Breyal.
*  New example to plot weekly data with gvisMotionChart
*  Removed local copies of gadget files to reduce package file
   size. A local copy of the R script to generate the original gadget
   files is still included in inst/gadgets 

googleVis 0.2.10 [2011-09-24]
----------------------------

Changes

*  Updated section 'Using googleVis output with Google Sites,
   Blogger, etc.' vignette

*  Updated example for gvisMotionChart, showing how the initial
   chart setting can be changed, e.g to display a line chart.

*  New example for gvisAnnotatedTimeLine, showing how to shade
   areas. Thanks to Mike Silberbauer for providing the initial code.    
   
NEW FEATURES
 
 *  New demo WorldBank. It demonstrates how country level data can
    be accessed from the World Bank via their API and displayed with a
    Motion Chart. Inspired by Google's Public Data Explorer, see
    http://www.google.com/publicdata/home
  

googleVis 0.2.9 [2011-09-01]
---------------------------

Changes

*  The documentation of googleVis has been update to reflect a new
   version of the Google Visualisation API which was published on 
   13 July, see
   http://code.google.com/apis/chart/interactive/docs/release_notes.html#72011. 
   Here are some of the most interesting features:   
   - Support for dual Y axes
   - Ability to crop and zoom chart area to specific ranges
   - Ability to set different properties for each series
   - Ability to enable or disable chart interactivity
   - Performance improvements in GeoChart

*  Updated vignette with new sections on
   - Setting options
   - How to use the on-page chart editor
   - Using googleVis with other Google products such as
     Blogger and Google Sites 

*  Updated warning section for gvisTreeMap

NEW FEATURES
 
 *  New gvis.editor argument in options, which adds an edit
    button to the page, allowing the user to edit, change and
    customise the chart on the fly.


googleVis 0.2.8 [2011-07-31]
---------------------------

Changes

*  Updated package welcome message. The message asks the user to read Google's
   Visualisation and Maps API Terms of Use before she uses the functions of the
   googleVis package. 
	
*  The caption gvis-plots contain an additional link to Google's data policy.

*  New example for gvisBarChart using the XML package to chart online data from Wikipedia


googleVis 0.2.7 [2011-07-10]
---------------------------

Changes

*  The vignette includes new sections describing:
   - how output of the googleVis package can be included into
     WordPress pages,  
   - how JavaScript event handlers can be added to charts. 

*  Clarified documentation for Flash based charts in help files of 
   motion chart, geo map, annotated time line. 

NEW FEATURES
 
 *  New demo 'EventListener' showcasing how a 'Listener' event can be
    added to charts  

BUG FIXES

 *  gvisGeoMap documentation stated that the default dataMode is
    'regions', but the function actually used 'markers'. The default
    for dataMode is now 'regions' and therefore in line with the
    help file.   

googleVis 0.2.6 [2011-06-12]
---------------------------

Changes

*  Updated demos

NEW FEATURES

*  New interfaces to three more interactive Google charts:
   - gvisComboChart
   - gvisGeoChart
   - gvisCandlestickChart

*  New function 'gvisMerge' to align two charts next to each other


googleVis 0.2.5 [2011-06-04]
---------------------------

NEW FEATURES

*  New interfaces to more interactive Google charts:
   - gvisLineChart
   - gvisBarChart
   - gvisColumnChart
   - gvisAreaChart
   - gvisScatterChart
   - gvisPieChart
   - gvisGauge
   - gvisOrgChart
   - gvisIntensityMap 

*  New demo 'AnimatedGeoMap'. The demo shows how a Geo Map can be animated
   with additional JavaScript. 
   Thanks to Manoj Ananthapadmanabhan and Anand Ramalingam, who
   provided the idea and initial code.
    
BUG FIXES

*  The way RJSONIO treats backslashes changed in version 0.7.1 and
   as a result some Google charts were no longer displayed.

googleVis 0.2.4 [2011-02-07]
---------------------------

Changes
   
*  plot.gvis no longer writes into the package folder. Instead
   temporary files are created. This overcomes the need to install
   the package into a directory with write access. Many thanks to
   Ben Bolker for this suggestion and code contribution.  
  
*  plot.gvis no longer requires the web server provided by
   the R.rsp package to display the visualisation output. Instead it
   uses the internal R HTTP help server. Many thanks to John Verzani
   for this suggestion and code contribution. 
  
*  R >= 2.11.0 is required to plot googleVis output, as it uses the
   internal R HTTP help server.
  
*  Updated vignette with a section on how to use googleVis with
   RApache and brew

NEW FEATURES

*  The plot function generates a web page which includes a link
   to the HTML code of the chart. Many thanks to Henrik Bengtsson
   for this suggestion.

*  gvis visualisation functions have a new argument 'chart id', to
   set the chart id of the exhibit manually. 	         

*  gvis functions return more details about the visualisation chart
   in a structured way. Suppose x is a 'gvis' object, than
   x$html$chart is a named character vector of the chart's
   JavaScript building blocks and html tags. 

*  print.gvis has a new argument 'tag', which gives the user more
   control over the output

*  Brew example files in: 
   system.file("brew", package = "googleVis")  

BUG FIXES

*  gvisTable did not accept datetime columns.

googleVis 0.2.3 [2010-12-19]
---------------------------

Changes
    
NEW FEATURES

*  gvisAnnotatedTimeLine accepts date in POSIX* formats

BUG FIXES

*  Google date objects expect the months Jan.- Dec. as 0 - 11 and
   not 1 - 12 
*  Fixed typo in the Andrew data set. The Pressure at 1992-08-24
   12:00:00 was 951 and not 51  

googleVis 0.2.2 [2010-12-12]
---------------------------

Changes
    
 *  Fixed typos in documentation

NEW FEATURES

*  New function:
   - createGoogleGadget which allows users to create Google Gadgets
     XML output  


googleVis 0.2.1 [2010-11-30]
---------------------------

Changes
    
 *  First version to be released on CRAN

NEW FEATURES

*  New function:
   - gvisAnnotatedTimeLine to generate interactive annotated time
     line charts 

googleVis 0.2.0 [2010-11-14]
---------------------------

Changes

*  The package has been renamed from GoogleMotionChart to googleVis 
   to reflect a new more flexible implementation.
*  More functions of the Google Visualisation API are now available.

USER-VISIBLE CHANGES

*  New interfaces, all visualisation functions start with 'gvis'.
*  Output is now of class 'gvis' with generic print and plot
   functions.
*  'gvis' objects are list of lists, which allow the user to extract
   the various parts of the visualisation output, e.g. the chart
   object.
  
NEW FEATURES

*  New functions:
   - gvisMotionChart to generate motion charts
   - gvisGeoMap to generate geographical maps
   - gvisMap to generate maps
   - gvisTreeMap to generate tree maps
   - gvisTable to generate table output
   - print.gvis: generic function to print 'gvis' objects
   - plot.gvis: generic function to display 'gvis' objects in a
     browser via the R.rsp package.  


googleVis 0.1.4 [2010-08-12]
---------------------------
Changes

*  The package uses the RJSONIO package from Omegahat to
   transform a data.frame into a json DataTable 

googleVis 0.1.3 [2010-08-08]
---------------------------
NEW FEATURES

*  More detailed motion chart configuration settings are possible.

USER-VISIBLE CHANGES
*  options have to be set via a list. Arguments height and width
   can be set, plus further configurations.
*  Updated demo PerformanceAnalyticsMotionChart   


googleVis 0.1.2 [2010-08-03]
---------------------------

First public version.
